JSFiddle - React, Tailwind, and code Playground
by aslancods
HTML
<div ng-app="" >
<div ng-controller="myController" >
<form name="myForm">
<input type="text" required="" />
</form>
</div>
</div>
JavaScript
function myController($scope) {
$scope.$watch('myForm.$valid',function(){
alert('spike');
})
}